diff --git a/.github/workflows/unittest.yml b/.github/workflows/unittest.yml
index ed8d9b9..32c317e 100644
--- a/.github/workflows/unittest.yml
+++ b/.github/workflows/unittest.yml
@@ -14,14 +14,14 @@ jobs:
           python-version: ${{ matrix.python-version }}
       - name: Install dependencies
         run: |
-          python -m pip install --upgrade pip
-          pip install -r requirements.txt
-      - name: Analysing the code with pylint
-        run: python -m unittest src/tests/*.py
+          python3 -m pip install --upgrade pip
+          pip3 install -r requirements.txt
+      - name: Run unit tests on the code
+        run: python3 -m unittest ${GITHUB_WORKSPACE}/src/tests/*.py
       - name: Check test results
         run: |
-          test_result=$(python3 -m unittest src/tests/*.py |& grep "FAILED" | wc -w)
-          if (( $(echo "$result") == 0 )); then
+          test_result=$(python3 -m unittest ${GITHUB_WORKSPACE}/src/tests/*.py |& grep "FAILED" | wc -w)
+          if (( $(echo "$test_result") == 0 )); then
             echo "Tests passed. Commit approved."
           else
             echo "Tests failed. Blocking commit."
diff --git a/requirements.txt b/requirements.txt
index 1624e6a..a460a71 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,3 +3,4 @@ scipy>=1.12.0
 matplotlib>=3.8.2
 pandas>=2.2.1
 seaborn>=0.13.2
+openpyxl>=3.1.2
diff --git a/src/tests/qepas.xlsx b/src/tests/qepas.xlsx
new file mode 100644
index 0000000..c9e4bf2
Binary files /dev/null and b/src/tests/qepas.xlsx differ
diff --git a/src/tests/rt.xlsx b/src/tests/rt.xlsx
new file mode 100644
index 0000000..4f76853
Binary files /dev/null and b/src/tests/rt.xlsx differ